A3 Paper Size

ISO 216 · International

Quick facts

Millimeters297 × 420

Centimeters29.7 × 42

Inches11.69 × 16.54

Paper sizeDPIOrientation

A3 @ 300 DPI · Portrait

3,508 × 4,961 px

11.69 × 16.54 inches

A3297 × 420 mm

Dimensions

Unit	Width	Height
Millimeters	297 mm	420 mm
Centimeters	29.7 cm	42 cm
Inches	11.69 in	16.54 in
Points	841.89 pt	1,190.55 pt

A3 Size in Pixels

DPI	Width	Height
72	842 px	1,191 px
96	1,123 px	1,587 px
150	1,754 px	2,480 px
200	2,339 px	3,307 px
300	3,508 px	4,961 px
600	7,016 px	9,921 px

Pixel dimensions depend on the selected print resolution. Each dimension is rounded to the nearest whole pixel.

Common Uses

PostersTechnical drawingsLarge-format printing

Related Paper Sizes

A2

420 × 594 mm

16.54 × 23.39 in

A4

210 × 297 mm

8.27 × 11.69 in

Tabloid

279.4 × 431.8 mm

11 × 17 in

Related Tools & Comparisons

Paper to Pixels Find a Paper Size ISO A Series A3 vs Tabloid A4 vs A3 ANSI B vs A3

Source: ISO 216:2007. How values are calculated